D3D11: Only use share handles with HW driver.

src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp

@@ -2323,9 +2323,30 @@ bool Renderer11::getShareHandleSupport() const
 {
     // We only currently support share handles with BGRA surfaces, because
     // chrome needs BGRA. Once chrome fixes this, we should always support them.
+    if (!getRendererExtensions().textureFormatBGRA8888)
+    {
+        return false;
+    }
+
     // PIX doesn't seem to support using share handles, so disable them.
+    if (gl::DebugAnnotationsActive())
+    {
+        return false;
+    }
+
     // Also disable share handles on Feature Level 9_3, since it doesn't support share handles on RGBA8 textures/swapchains.
-    return getRendererExtensions().textureFormatBGRA8888 && !gl::DebugAnnotationsActive() && !(mFeatureLevel <= D3D_FEATURE_LEVEL_9_3);
+    if (mFeatureLevel <= D3D_FEATURE_LEVEL_9_3)
+    {
+        return false;
+    }
+
+    // Also disable on non-hardware drivers, since sharing doesn't work cross-driver.
+    if (mDriverType != D3D_DRIVER_TYPE_HARDWARE)
+    {
+        return false;
+    }
+
+    return true;
 }
 
 bool Renderer11::getPostSubBufferSupport() const

src/tests/end2end_tests/PbufferTest.cpp

 #include "ANGLETest.h"
 
 // Use this to select which configurations (e.g. which renderer, which GLES major version) these tests should be run against.
-ANGLE_TYPED_TEST_CASE(PbufferTest, ES2_D3D9, ES2_D3D11, ES2_OPENGL);
+ANGLE_TYPED_TEST_CASE(PbufferTest, ES2_D3D9, ES2_D3D11, ES2_OPENGL, ES2_D3D11_WARP, ES2_D3D11_REFERENCE);
 
 template<typename T>
 class PbufferTest : public ANGLETest